RE: [Xen-users] Where are Xen kernel patches?

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> John McMonagle
> Sent: 15 December 2006 16:06
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Where are Xen kernel patches?
> 
> Want to see if I can get a couple old servers running under Xen.
> 
> They both need custom kernels.
> 
> One needs to run sco executables and need the abi patches.
> The other is for win4lin and needs win4lin patches.
> 
> Where are the xen kernel patches?
> Are there patches for older kernels that work with the current xen?
> It's improbably I will find  abi or win4lin patches for a 
> recent kernel.
> For win4lin see one for 2.6.14.3 for abi see mention of one 
> for 2.6.16.

Note: I haven't tried this, I'm just writing down what I have figured
out by looking at the different makefiles and doing other things in Xen.


You can generate your own patches with "make mkpatches" in the Xen tree.


You'll need to set the "LINUX_VER" to 2.6.14.3 in
.../buildconfigs/mk.linux-2.6-xen

And there's absolutely no guarantee that your patches will apply to this
kernel version, as it's quite ancient... It may be a BETTER option to
try to forward port the win4lin/sco abi changes to the current Xen
kernel version - as the patches for the Linux kernel in my
.../patches/linux-2.6.16.29/ is around 7500 lines of patches. I doubt
the size of the sco/win4lin patches are that big (although I guess
win4lin may be quite big), so it's possibly easier to make those work on
a later kernel version than taking Xen back several releases... 

--
Mats
> 
> I suppose HVM could be used, but do not have anything that supports it
> at the moment.
> If one did use HVM would one still have the disk and lan performance
> issues windows has?
> 
> Thanks
> 
> John
> 
> -- 
> John McMonagle
> IT Manager
> Advocap Inc.
> 
> 
> 
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